90371

Properties

Appears in sequences

• Number of integers with a shortest addition chain of length n.at n=21A003065
• Column 13 of array illustrated in A089574 and related to A034261.at n=4A110624
• Numbers k such that (7*10^k - 313) / 9 is prime.at n=25A278707
• a(n) is the least prime p for which the continued fraction expansion of sqrt(p) has exactly n consecutive 1's starting at position 2.at n=8A307453
• Prime numbersat n=8749